there are not that many that I hate, maybe just the classic harem bullshit in isekais, self insertion in general tends to be pretty awkward.
Tropes you hate
>character gets upset so he/she runs out and gets hit by a truck/car
Erry time.
>you could never understand my true feelings!
>masochistic female character
>I fight to protect people
>I fight to protect her smile
>I need more power!
>narration for actions whose workings are already apparent from the visuals and do not require further explanation
>EHHHHHH? [outside shot as camera quickly pans upwards]
>alice in wonderland references
>convenient interruptions
>verbal tics
>MC gets angry and transforms to kill the villain
>weeaboo
To be fair Reborn is part comical, so don't need a reason to cry or whatever. BNHA is trying a more serious approach, no one likes a crybaby faggot like Deku.